Pooncash Share definition Flag Any type of sexual activity, (usually refers to hooking up, or french kissing) that is voluntary, but later regreted) "yo i heard u hooked up with that chick" "yea man but it was pooncash, she's ugly" "aight" Pooncash by Izzy T and Jason S January 20, 2007 0 0 Get merch Get the Pooncash mug. Buy Now — $32.95 See more merch